Dan whats going to happen is you will join the 'leaflets don't work' brigade.
You've got 10,000 leaflets printed you'll get them put out and over the next 3 months. you'll get work from them....... but because you didn't get it all in the first 2 week of the delivery you'll think leaflets don't work
what you need to do is a sustained leaflet campaign of 15-20k a month for 6 months, going to the same houses every month, which should be no further than 4 miles from your home.
don;t do 10,000 leaflets and decide they don't work, 10k is a drop in the ocean